Table 1.
Demographic, clinical and pathological characteristics of study subjects
| Characteristics | Cases (n = 574) | Controls (n = 574) | P value value |
|---|---|---|---|
| Age (Mean ± SD, years) |
58.56 ± 12.09 |
58.29 ± 11.88 |
0.71 |
| Sex (Male/female) |
399/175 |
399/175 |
1.00 |
| Seropositive rate of H. pylori infection |
71.1% |
67.9% |
0.25 |
| Location of gastric carcinoma |
|
|
|
| Cardia |
181 |
NA |
|
| Noncadia |
393 |
NA |
|
| Vascular invasion |
|
|
|
| Absent |
363 |
NA |
|
| Present |
211 |
NA |
|
| Lymph node metastasis |
|
|
|
| Absent |
173 |
NA |
|
| Present |
401 |
NA |
|
| Liver metastasis |
|
NA |
|
| Absent |
512 |
NA |
|
| Present |
62 |
NA |
|
| Peritoneal dissemination |
|
|
|
| Absent |
503 |
NA |
|
| Present |
71 |
NA |
|
| TNM stage |
|
|
|
| IA |
96 |
NA |
|
| IB |
79 |
NA |
|
| II |
107 |
NA |
|
| III |
173 |
NA |
|
| IV |
119 |
NA |
|
| Follow-up (months) |
|
NA |
|
| Median (Range) | 36 (4–48) | NA |
Abbreviations: SD, standard deviation; NA, not applicable.